Battle of Nihriya in 1237 BC

Battle of Nihriya in 1237 BC was a battle between  Assyria and the Hittite Empire - Tudḫalia IV (r. c. 1237-1209 BC) and Tukulti-

ninurta(r. 1243-1207 BC). Resulted in Assyrian victory.

See:

1. Trevor Bryce: The ‘Eternal Treaty’ from the Hittite perspective, 2006, pp.3-4 - http://www.britishmuseum.org/pdf/6a%20The%20Eternal%20Treaty.pdf
2. Jürgen Seeher, Chronology in Hattuta: New Approaches to an Old Problem, in: Mielke, Schoop, Seeher (ed.), Structuring and Dating in Hittite Archaeology. BYZAS 4 (2006), pp. 197-213